cold storing potatoes

As long as each spud has some chits and they are short, sturdy, and green/purple that's fine - it can take months before all the eyes chit equally, by which time the tuber will be but a shadow of its former self (although still plantable!)

While we're talking tayties, I've had some chitting away for a few weeks. They set off nicely but now seem to have ground to a halt. They are in the house in an unheated bedroom. Nice and light, but not direct sun. Any clues?